The fictional Ewing family of oil barons on television’s “Dallas” drama series said earlier this week it would help drivers by opening a filling station and selling gasoline at low prices. But the station’s location and the price of the fuel remained a mystery.

Now we know the station, carrying the Ewing Energies brand, will open in New York, somewhere in the borough of Manhattan, on Monday morning. The network said John Ross Ewing, played by Josh Henderson, will conduct a ribbon-cutting ceremony and announce pricing.

The gas-station takeover and one-day gas sale is part of a promotional push for the show’s third season, which begins Monday at 9 p.m. ET. It could cause a sensation not only with lower prices, but because so many gas stations in Manhattan have closed in the last decade that it is now difficult to find one.

The promotion also includes radio and billboard ads, specially labeled oil tankers and ads and video messages from the John Ross character on Facebook. People who live in other regions can still take advantage of the marketing deal by entering a sweepstakes to win a Black Gold Card worth $50 of fuel.

The actor Henderson appeared as Ewing in a video to announce the gas sale, saying it is a response to consumers’ desire for less-expensive gasoline. The average price for a gallong of regular gas in the U.S. is $3.39.